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rounding facetted polygonal modeling cinema 4d

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#1 kmwhitt

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Posted 17 January 2016 - 10:59 AM

I jumped into FZ8.5 coming from 6.5 this weekend and things have changed quite a bit.  I do all of my modeling in FormZ and export to C4D for render.  The tools in FZ now seemed to be much more geared towards smooth modeling/nurbz/subd modeling as many of the features I used in the past for facetted/polygonal modeling have disappeared - such as being able to specifying number of points to use during rounding operations.  Anyway, I am running into a more immediate problem - see image attached.  The rounding facets are not lining up with the sides which is making a big smoothing mess in Cinema4D.  How do I avoid this problem when rounding and at export?  It is not usable to me in this state.  I would appreciate someone getting me up to speed in this matter.  Thanks, Kevin.

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#2 jonmoore

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Posted 17 January 2016 - 11:19 AM

There's a new export option for OBJ, FBX (and a few other which I don't use) called 'Hi Quality Smoothing' which should remedy these issues. The FBX exporter is still in beta and you'll have to add smoothing tags manually in C4D so I tend to use OBJ at the moment for export. If you're exporting strictly for rendering and animation 3ds is still a good option but it's triangulated throughout so it's difficult to do any further modeling operations in C4D.

 

Other gotcha's with C4D is that Maxon keep on playing with the OBJ importer with each release so there are different tricks you have to use depending on if you're on R15, R16, R17. Always best to maintain old releases with C4D (I personally do all my heavy lifting with R15 - pre the mess of the Reflectance channel), and this imports the geometry well but loses the material parameters on import (they're still there it's just that they all show up as white materials). There's a really great OBJ importer plugin called Riptide Pro which does the best job of all. It's getting a bit long in the tooth but it still works all the up to R17.

 

https://skinprops.com/riptidepro.php

 

 


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#3 kmwhitt

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Posted 17 January 2016 - 12:28 PM

Thanks for the reply.  I'm using C4DR16.  I guess I'll keep experimenting.  BTW - This "Hi Quality Smoothing", will that change the geometry upon export?  Is there a way that FormZ will align the side during the rounding operation?  Looks too much like Rhino to me.



#4 jonmoore

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Posted 17 January 2016 - 12:38 PM

Thanks for the reply.  I'm using C4DR16.  I guess I'll keep experimenting.  BTW - This "Hi Quality Smoothing", will that change the geometry upon export?  Is there a way that FormZ will align the side during the rounding operation?  Looks too much like Rhino to me.

 

It's the way the geometry engine works. Working with solids and nurbs surfaces is very different to working directly with polygons so when surfaces and solids are converted to polygons they give the impression that they're not aligned but once the export is brought into a polygonal package such as Modo or C4D you'll see than polygons do align if their part of a single object. And incidentally that's the best way to manage against smoothing errors. Split up your model into different objects before export (especially around problematic surface interchanges). This helps a great deal too (as well as the Hi Quality smoothing option).


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#5 setz

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Posted 17 January 2016 - 03:12 PM

Facetted or Smooth options in Revolve are very important.  Best to have the Facetted option returned.



#6 kmwhitt

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Posted 18 January 2016 - 05:25 AM

Jon - Thanks again for the response.  I am still having no luck getting this to export - having tried several methods.  Tech Support - I would appreciate you taking a look at the attached file and advise on the best way to export.  Further, I am unable to convert the outer disk shape to facetted.  Why is this tool unavailable for this object?  

 

How do I attach a file?


Edited by kmwhitt, 18 January 2016 - 05:26 AM.


#7 Tech

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Posted 18 January 2016 - 10:21 AM

Hi Kevin,

 

The High Quality Smoothing option that Jon mentions should do the trick, but if it is not, you can use More Reply button at the bottom right of the text window here to Attach a file.  For the forum, FMZ files should first be ZIPped, and should be smaller than 5 Mb.  Or you can send the file to support@formz.com and we can get it from there...



#8 kmwhitt

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Posted 18 January 2016 - 12:38 PM

I could not get High Quality Smoothing to correct the problem.  Please see attached file.  Thanks!

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#9 kmwhitt

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Posted 19 January 2016 - 11:26 AM

Any luck with this file?

 

Also, I sent an email to Tech support over the weekend - so far, no reply.  When I tried to install V8.5 on my new computer, it says I have exceeded my number of licenses.  I removed FormZ from the old computer with no difference.  What do I have to do to unlock the new install?  Thanks,  Kevin.



#10 Tech

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Posted 19 January 2016 - 11:43 AM

Hi Kevin,

 

We are still looking at the geometry, and it imports fine into programs like Electric Image and others, but not sure if there is a setting that needs to be made when Importing into Cinema.  Is there an import option there to read the Smoothing / Normals from the Imported file?

 

We did not receive any emails from you to support@formz.com.  Did you send it to a different address -- and either way, can you please resend it?  To remove a license from one computer, please send your formZ Serial number -- as well as the MAC Address of the computer from which you wish to remove formZ, and we can adjust our records accordingly.



#11 kmwhitt

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Posted 19 January 2016 - 02:32 PM

Hi ZMod - the only options to import within Cinema 4D are attached.  I have tried various combinations.  I've been using OBJ export with C4D for years up to FZV6.5 with no problems.  I understand V7 and up has changed significantly, but I've got to find a way to do this or I can't work with the latest version - unless you have another format you suggest (that supports N-gons).  Thanks for looking into this.  I will resend my license request w/ MAC Address tonight.

 

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#12 Tech

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Posted 19 January 2016 - 02:47 PM

How about DAE or the new beta FBX translator (with the High Quality Smoothing)?



#13 kmwhitt

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Posted 19 January 2016 - 02:54 PM

I've tried FBX - no success.  I will give DAE a try tonight.



#14 kmwhitt

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Posted 19 January 2016 - 03:00 PM

Wait - I take that back.  I couldn't find an FBX export if I remember correctly.  That may be my preferred method as I use it with 3DS Max often.  Where do I get it?  Is it a plug-in?



#15 Tech

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Posted 19 January 2016 - 03:35 PM

Hi Kevin,

 

You can get the FBX Plugin here:

 

http://forums.formz....-1010-yosemite/

 



#16 kmwhitt

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Posted 19 January 2016 - 04:20 PM

Are you sure this is the correct link for the FBX plug-in?  I am trying to use V8 also.

 

formZ 7 "Hot Fix" for OS X 10.10 Yosemite

#17 Tech

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Posted 19 January 2016 - 05:06 PM

Hi Kevin,

 

Whoops, wrong link -- try this one instead:

 

http://forums.formz....-now-available/



#18 kmwhitt

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Posted 19 January 2016 - 06:18 PM

Thank you.



#19 kmwhitt

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Posted 19 January 2016 - 06:28 PM

Just tried the FBX export.  Did not work.  Please keep me posted on what you learn.



#20 jonmoore

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Posted 19 January 2016 - 07:36 PM

Just had a chance to take a look at your file and have managed to import a matching file into C4D R15 (and R17 - I don't have R16 installed) but there are a couple of caveats based on how you created your geometry in FormZ.

 

As you can see once you disable the wireframe in FormZ, pre meshing your geometry created slight shading errors even within the FormZ viewport. The import in C4D is a match for the Geometry in FormZ but to make it match you need to ensure that you don't import the normal map (or delete the normal tags in C4D). When I recommended using the Hi Quality normals option for your OBJ export, this was based upon maintaining your geometry as smooth solids (or NURBS surface) in FormZ and allowing the export to create the mesh and associated normal map. Pre meshing in FormZ always creates less than ideal surface shading on curved surfaces when taken into external polygonal packages.

 

Recreating your geometry as smooth solids (or NURBS) then using the Hi Quality smoothing option and ensure that solids/surfaces are converted based on display resolution and that resolution is either 50 or 100% - I've found other display resolutions create bad exports. This should yield better surface smoothing results in C4D.

 

Hope this helps.

 

1gMot.png

 

ETM.png

 

 


Edited by jonmoore, 19 January 2016 - 07:37 PM.






Also tagged with one or more of these keywords: rounding, facetted, polygonal modeling, cinema 4d

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